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A ile (b+10) doğru orantılıdır A=49 iken b=70 oluyorsa a=30 ise b kaçtır?​

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Merve920194rans

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[tex] \frac{a}{b + 10} = \frac{49}{70 + 10} = \frac{49}{80} = \frac{30}{b + 10} \\ 80.30 = 49(b + 10) \\ 2400 = 49b + 490 \\ 2400 - 490 = 49b \\ 1910 = 49b \\ b = \frac{1910}{49} [/tex]

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